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**Mayfly Genus Maccaffertium (March Browns and Cahills)**

Mayflies

Caddisflies

Stoneflies

Taxonomic Navigation -?-

Kingdom Animalia (Animals)

» Phylum Arthropoda (Arthropods)

» Class Insecta (Insects)

» Order Ephemeroptera (Mayflies)

» Family Heptageniidae (March Browns, Cahills, Quill Gordons)

» Genus Maccaffertium (March Browns and Cahills)

Species in Maccaffertium
Maccaffertium ithacaLight Cahill	0	0
Maccaffertium luteum	0	0
Maccaffertium mediopunctatumCream Cahill	0	0
Maccaffertium mexicanumCream Cahill	0	0
Maccaffertium modestumCream Cahill	0	0
Maccaffertium pudicum	0	0
Maccaffertium pulchellumLight Cahill	0	0
Maccaffertium terminatum	0	0
Maccaffertium vicariumMarch Brown	0	0

8 species aren't included.

Common Name

Match	Common Name
	March Browns and Cahills

Pictures Below ↓

This is page 4 of specimens of Maccaffertium. Visit the main Maccaffertium page for:

The behavior and habitat of Maccaffertium.
1 underwater picture of Maccaffertium.

Pictures of 59 Mayfly Specimens in the Genus Maccaffertium:

Specimen Page:1...345...7

Maccaffertium vicarium (March Brown) Mayfly Nymph

View 3 Pictures

Collected March 1, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Maccaffertium vicarium (March Brown) Mayfly Nymph

View 3 Pictures

Collected March 1, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Maccaffertium (March Browns and Cahills) Mayfly Nymph

View 3 Pictures

Collected March 1, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Male Maccaffertium vicarium (March Brown) Mayfly Spinner

View 5 PicturesThis spinner comes from a dun I collected and photographed earlier.

Collected May 28, 2005 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on May 24, 2006

Maccaffertium mediopunctatum (Cream Cahill) Mayfly Nymph

View 4 Pictures

Collected June 8, 2005 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on May 26, 2006

Maccaffertium (March Browns and Cahills) Mayfly Nymph

View 2 Pictures

Collected January 13, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Maccaffertium (March Browns and Cahills) Mayfly Nymph

View 3 Pictures

Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Maccaffertium (March Browns and Cahills) Mayfly Nymph

View 3 Pictures

Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Female Maccaffertium vicarium (March Brown) Mayfly Spinner

View 6 Pictures

Collected June 1, 2005 from the Bois Brule River in Wisconsin
Added to Troutnut.com by Troutnut on May 24, 2006

Maccaffertium vicarium (March Brown) Mayfly Nymph

View 2 Pictures

Collected March 1, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006

Specimen Page:1...345...7

Jargon Defined:

Dun: Mayflies have two adult stages. They first emerge from the water as duns (scientifically known as the subimago stage). They then molt into the spinner (imago) stage, in which they mate and die. Sometimes the word "dun" is confusingly used to refer to a brownish gray color in fly tying materials.

Spinner: There are two winged stages of adult mayflies. They emerge from the water as duns, molt on land (usually) into their fully mature stage, spinners. As spinners, they mate, lay eggs, and die.

Useful References:

Arbona, Fred Jr. 1989. Mayflies, the Angler, and the Trout. Nick Lyons Books.

Caucci, Al and Nastasi, Bob. 2004. Hatches II. The Lyons Press.

Fauceglia, Ted. 2005. Mayflies . Stackpole Books.

Knopp, Malcolm and Robert Cormier. 1997. Mayflies: An Angler's Study of Trout Water Ephemeroptera . The Lyons Press.